1 官网

http://developers.itextpdf.com/itext-java

2 form中加入表格

http://developers.itextpdf.com/content/best-itext-questions-stackoverview/interactive-forms/itext7-how-add-table-form-and-maybe-insert-new-page

http://stackoverflow.com/questions/28590487/adding-table-to-existing-pdf-on-the-same-page-itext?rq=1

3 表格中中文不显示的问题

http://bbs.csdn.net/topics/10122567

iText7